/* Vehicle Monthly Tax / Rental Fee Collection System */
/* Professional Mobile App Design with Bootstrap 5 */

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --success-color: #10b981;
    --success-dark: #059669;
    --danger-color: #ef4444;
    --danger-dark: #dc2626;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --light-bg: #f5f7fa;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(180deg, #f0f4f8 0%, #e2e8f0 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    padding-bottom: 85px; /* Space for bottom navigation */
    padding-top: 75px; /* Space for header */
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 0;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.login-card {
    max-width: 420px;
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    border: none;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.98);
    position: relative;
    z-index: 1;
}

.login-card .card-body {
    padding: 3rem 2.5rem;
}

/* Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1.25rem 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.app-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.app-header h4 {
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.app-header small {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.8rem;
    font-weight: 400;
}

/* Main Container */
.main-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.page-header h1 i {
    color: var(--primary-color);
    font-size: 1.75rem;
}

.page-header .text-muted {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Statistics Cards */
.stat-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    opacity: 0;
    transition: opacity 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    position: relative;
}

.stat-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
}

.stat-content {
    flex-grow: 1;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-top: 0.375rem;
    font-weight: 600;
}

/* Cards */
.card {
    border: none;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    margin-bottom: 1.5rem;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.8);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    border-radius: 20px 20px 0 0 !important;
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-header i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.card-body {
    padding: 1.5rem;
}

/* List Groups */
.list-group {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

.list-group-item {
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    transition: all 0.2s ease;
    background: var(--card-bg);
}

.list-group-item:last-child {
    border-bottom: none;
}

.list-group-item:hover {
    background: linear-gradient(90deg, #f8fafc 0%, #ffffff 100%);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.list-group-item-action {
    cursor: pointer;
}

.list-group-item-action:hover {
    background: linear-gradient(90deg, #f8fafc 0%, #ffffff 100%);
    transform: translateX(4px);
}

/* Buttons */
.btn {
    border-radius: 12px;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    font-size: 0.9rem;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, var(--success-dark) 100%);
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.4);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.5);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Forms */
.form-control,
.form-select {
    border-radius: 12px;
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    background: var(--card-bg);
    font-size: 0.95rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: white;
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.input-group-text {
    border-radius: 12px 0 0 12px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 2px solid var(--border-color);
    border-right: none;
    color: var(--text-secondary);
}

/* Alerts */
.alert {
    border-radius: 16px;
    border: none;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert i {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.alert-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

.alert-info {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    border-left: 4px solid var(--info-color);
}

/* Badges */
.badge {
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
    box-shadow: var(--shadow-sm);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    padding: 0.75rem 0 1rem;
}

.nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 0.5rem;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 16px;
    min-width: 64px;
    position: relative;
}

.nav-item i {
    font-size: 1.35rem;
    margin-bottom: 0.25rem;
    transition: all 0.3s;
}

.nav-item span {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%) scale(0);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    opacity: 0.1;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-item:hover::before {
    transform: translateX(-50%) scale(1);
    opacity: 0.15;
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-item.active::before {
    transform: translateX(-50%) scale(1);
    opacity: 0.2;
}

.nav-item.active i {
    transform: scale(1.1);
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid var(--light-bg);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #6c757d;
    padding: 0.75rem;
}

.table tbody td {
    padding: 0.75rem;
    vertical-align: middle;
}

.table tfoot th {
    background-color: var(--light-bg);
    font-weight: 700;
}

/* Modals */
.modal-content {
    border-radius: 24px;
    border: none;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.modal-header .modal-title {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.modal-body {
    padding: 1.5rem;
    background: var(--card-bg);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

/* Responsive */
@media (max-width: 480px) {
    .main-container {
        padding: 1rem 0.75rem;
    }
    
    .page-header h1 {
        font-size: 1.5rem;
    }
    
    .stat-card {
        padding: 0.875rem;
    }
    
    .stat-icon {
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }
    
    .stat-value {
        font-size: 1.1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .nav-item span {
        font-size: 0.65rem;
    }
    
    .table {
        font-size: 0.875rem;
    }
}

/* Print Styles for Receipts */
@media print {
    body {
        padding: 0;
    }
    
    .app-header,
    .bottom-nav,
    .btn,
    .page-header .btn {
        display: none !important;
    }
    
    .main-container {
        max-width: 100%;
        padding: 0;
    }
}

/* Utility Classes */
.text-primary {
    color: var(--primary-color) !important;
}

.text-success {
    color: var(--success-color) !important;
}

.text-danger {
    color: var(--danger-color) !important;
}

.text-warning {
    color: var(--warning-color) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.bg-success {
    background-color: var(--success-color) !important;
}

.bg-danger {
    background-color: var(--danger-color) !important;
}

.bg-warning {
    background-color: var(--warning-color) !important;
}

.bg-info {
    background-color: var(--info-color) !important;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Smooth Transitions */
* {
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

/* Additional App-like Enhancements */
.text-muted {
    color: var(--text-secondary) !important;
}

/* Loading Spinner */
.spinner-border {
    width: 2rem;
    height: 2rem;
    border-width: 0.2em;
}

/* Enhanced Table */
.table {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
}

.table thead th {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding: 1rem;
}

.table tbody tr {
    transition: all 0.2s;
}

.table tbody tr:hover {
    background: #f8fafc;
    transform: scale(1.01);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}